user1481927
user1481927

Reputation: 81

java zip archive damaged

I have a problem with a created archive - when trying to unzip windows shows that there's an error. Is it an issue with code?

File dir = new File("M:\\SPOT/netbeanstest/TEST/PDF");
    String archiveName = "test.zip";

    byte[] buf = new byte[1024];
    try {
        ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(
                archiveName));

        for (String s : dir.list()) {
            File toCompress = new File(dir, s);
            FileInputStream fis = new FileInputStream(toCompress);

            zos.putNextEntry(new ZipEntry(s));
            int len;
            while((len = fis.read(buf))>0){
                zos.write(buf, 0, len);
            }
            zos.closeEntry();
            fis.close();
        }

    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

Upvotes: 0

Views: 1192

Answers (1)

KARASZI István
KARASZI István

Reputation: 31477

I'll write write my comment down as an answer because it solved the problem.

All streams (InputStream, OutputStream) should be closed with their close() method to make sure that the data has been written out and no open handlers has left over.

It's a good idea to do it in a finally block, like this:

ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(archiveName));

try {
    for (String s : dir.list()) {
        File toCompress = new File(dir, s);
        FileInputStream fis = new FileInputStream(toCompress);

        try {
            zos.putNextEntry(new ZipEntry(s));
            int len;

            while((len = fis.read(buf))>0){
                zos.write(buf, 0, len);
            }
            zos.closeEntry();

        } finally {
            fis.close();
        }
    }
} finally {
    zos.close();
}

Upvotes: 2

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